Temperature-retaining device.



No-; 719,220. PATENTED JAN. 27 1903 J. HOMMEL. TEMPERATURE RETAINING DEVICE.

APPLICATION IILBD M42. 21, 1902. no MQDEL.

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J. HOMMELK TEMPERATURE RETAINING DEVICE.

APPLICATION FILED MAR. 21, 1902. H0 MODEL.

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PATENTED-JAN. 27, 1903.

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No. 719,220. PATENTBD JAN. 27, 1903.

J. HOMMEL. TEMPERATURE RETAINING DEVICE.

APPLIOATIOH FILED MAR. 21, 1902. no MODEL. a BHEETB-SHBBT a.

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JACOB HOMMEL, OF LOS ANGELES, CALIFORNIA.

TEMPERATURE FiETAlNING DEVlCE.

SIECIFICATION Torr ringpart of Letters Patent No. 719,220, dated January 27, 1903.

Application filed March 21, 1902. Serial No. 99,369. (No model.)

To all w/tont it iii/t7 concern:

Beit known that I, JACOB HoMMEL, a citizen of the United States, and a resident of Los Angeles, in the county of Los Angeles and State of California, have invented cer tain new and useful Improvements in Tem-- perature-Retaining Devices; and I do hereby declare the following to be a full, clear, and exact description of said invention, such as will enable others skilled in the art to which it most nearly appertains to make, use, and practice the same.

Myinvention relates to a device or apparatus adapted to retain therein a given degree of temperature, either warm or cold, as the case maybe; and it consists in certain peculiarities in the construction of parts and in certain novel combination of elements, substantially as hereinafter described, and particularly pointed out in the subjoined claims.

The object of my invention is to produce a convenient device that can be adapted for various purposes, particularly for preserving goods or preparing pharmaceutical compounds which have to be kept under certain degrees of temperature.

Referring to the accompanying drawings, consisting of three (3) sheets and six (6) figures, which form a part of the following specification,Figure 1 represents aside elevation of myinvention as it appears in practice. Fig. 2 is a perspective view of the main body of my invention,taken from line 1 to 1 of Fig. 1, showing particularly two sections opened and hinged togethenalso the inner arrangement of same. Fig. 3 is a longitudinal section showing particularly two valves secured to the sections by which the air-chambers formed therein are automatically connected together. Fig. 4: is a longitudinal section taken from line 2 to 2 of Fig. 1, showing the inlet to the ainchamhers and a coupling broken away and secured thereon. Fig.5isalongitndinalsectiontaken from line 3 to 3 of Fi 1, showing the looking device; and Fig. 6 is a section taken from line 4 to 4: of Fig. 5 looking in the direction of the arrows, showing particularly the main features of the locking device in elevation.

Similar letters of reference indicate corresponding parts throughout the several views of the drawings.

A designates the frame upon which the main body of my invention is mounted and rotates for convenient purposes by means of platform B, secured between the frame and the main body.

The main body just mentioned consists of two sections 0 and D, which are substantially alike in construction and operation and hinged together, as particularly shown in Fig. 2, so that they could be conveniently opened or closed when desired. The section 0 is made fast to the platform B, which is centrally pivoted and held in position upon the frame A by means of screw-threaded bolt a and nut a and has a depression 1) below the section D to facilitate the opening and closing of the section when desired and is provided also with antifriction rollers I), placed between the frame and the platform (shown only in Fig. 1) to counterbalance the weight of the sections above and ease the movements of theplatform. As shown in the drawings, (particularly in Fig. 2,) the two sections when closed form a square; but it will be conceived from the description that any other convenient shape can be used without materially affecting the object I have in view, and the frame A may be dispensed with altogether, if desired. In this case the main body above mentioned may be placed upon a table or any other place, if preferable. The inner arrangement of each respective section consists of receptacles E, which have a semicircular appearance when the sections are open and form a central cylindrical air-tight compartment when closed, as can be plainly seen at a glance of Fig. 2, and surrounding this compartment are airchambers F and G, provided with the walls 0, which are supported within each section to the inner sides of the outer casings c by means of suitable blocks d, permanently secured between. By this arrangement I form around the air-chambers a narrow dead-air compartment II, the object of which is to free the air-chambers from contact with outside temperature, which may aifect the object of the air-chambers within while in operation.

The inner faces of the casings and the outer and inner faces of the walls of the air-chambers may be coated or lined with preventive compound, such as might fill up the pores of the material with which they may be constructed and thus render them air-tight, as is my particular object while constructing my device.

The air-chamber F is provided with tube 1, while the air-chamber G has the tube J, which tubes are suitably placed upon the face of their respective sections oppositely through the casing 0",the vacuum-compartment H, and the wall a of the air-chamber and are adapted to form the passages e, for the purpose of connecting the two air-chambers together automatically when the sectionsare closed, as particularly illustrated in Fig. 3. Within the tubes and at their inner ends are valves K,having their faces beveled correspondingly with the inner ends of the tubes, which form the valve-seats. These valves, with their stemsf projecting outwardly from the face of the sections an d supported centrally within the tubes by means of guides or bridgesf and springs g, secured to the stems to control their movements, are all substantially alike and operate in the same manner. To make clear this feature of myinvention, if the sections are being opened the springs 9 force the stems to move outwardly after being released, thereby closing the valves, and while closing the sections the stems, which are placed opposite each other, come in contact together-and force mutually their way innerly, thus opening the valves automatically and connecting the airchambers together through the passages e, as previously mentioned, and plainly seen in Fig. 3, which shows the sections closed and the valves opened, leaving the passages free.

While closing the sections, it one of the springs happen to be weak the other one will naturally keep its stem stationary and move the other stem inwardly, thusopening only One valve. To overcome this inconvenience, I provide at the ends of each stem adjustable nuts g, arranged, as it appears in Fig. 3, screwed upon the stems against the bridge f, which forms a stopper, so that the ends of each stem come in like manner in a line with the face of the sections when closed, thusregulating accordingly their travel.

The outer ends of the tubes I and J are provided with suitable flanges h, which fit into a depression out upon the face of the sections, so that they could be screwed permanently in place and form a better finish.

The tube I is provided with ring it, adjusted within a circular depression made upon its inner side at its outer end and is adapted to press outwardly by means of spring 1', placed behind it within the depression. The rear end of the ring has small side projections 11', fitted in suitable slots formed for that purpose within the depression to prevent the same from slipping out and has a cone shaped forward end projecting outwardly and matching within the beveled outer end of the tube J. With this arrangement when closing the sections the passage 6 can be connected together before the valves are forced open by the contact of the stems, as previously intimated, thus preventing escape of the air within the chambers F and G.

The air-chamber of section 0, as illustrated in Fig. 4, is provided with an inlet, which consists of tube L, placed between the outer side of casing c and the inner wall 0 of the air-chamber F, and has the flange 7c permanently screwed to the casing. The inner end of this tube is provided with a valve L, arranged and fitted to operate substantially in the same manner as those previously described, while its outer end is adapted for engagement with a hose-coupling, as at through which the air may be forced in the chambers F and G, through the passages e, by

means of suitable pump or. other appliances.

Thus it will be seen that the passages 6, connecting the two air-chambers together, dispense with two inlets, which will be the case otherwise.

The receptacles E, previously described, are provided with brackets Z, (shown in Fig. 2,) which may be placed correspondingly within the receptacles and form a circle when the sections are closed. The object of these brackets is for the purpose of holding a series of vessels which may contain various kinds of goods at the same time while operating my device and to remove them independently when desired.

The face of each section near the edges is provided with packing 'm, (shown exclusively in Fig. 2,) which may be of any suitable material, preferably flexible, such as may form, however, an air-tight joint between the sections when they are closed and locked together in position by means of catch M, provided with a suitable casing secured to section 0 and hook-bolt N, provided also with a suitable casing secured to section D. This feature is particularly illustrated in Figs. 5 and 6 and partially in Fig. 2. The rear end of the catch has shaft n, which is pivoted to the casing-and is adapted to move up or down the other end of the catch, as the case may be, by means of knob n, secured at its outer end,

while the forward end has an angular shape adapted to slide over the hook-bolt when closing the sections. The hook-bolt is pivoted to the casing and has at its outerend knob 0 to rotate the sa me,and its hook portion is slightly inclined outwardly and has sufficient friction with the hook-bolt to force it downwardly or upwardly by the rotating movements of the hook-bolt, as the case may be, thereby forcing the sections to come tighter together and when the catch is released assume its normal position by its own weight, thus doing away with springs or other appliances. As soon as the catch is released the section D flaps open by means of a bow-shaped spring 0, secured to the face of section 6, as shown onlyin Fig. 2, thus speeding the operation.

. The outer sides of sections 0 and D are provided with ornamental panels 10, as'shown in Figs. 1 and 2, and may consist of suitable slate u pon which the time and particular kind of goods placed within the receptacles or compartment E may be described, and each sec- 'tion has a suitable thermometer q, connected with its air-chamber for the purpose of iudicating the temperature within. Thus constructed and arranged it will be conceived that it hot or cold air should be forced in the chambers F and G through the inlet and stored therein the goods placed in the receptacles or compartment E can be kept under uniform temperature for such a time as may be necessary to carry out the object I have in view, and, if desired, a continual current of air may pass through the chambers and exhaust through the outlet. 7', secured to the section D, as shown in Fig. 1, which may be constructed and operated in the same manner as the inlet previously described.

Instead of air; water of sufficient temperature may be used in the same manner and for the same purpose with just as an effective result. However, in either case the inlet may be connected to proper snpplyof air or water, as the case may be, and forced in the chambers by any suitable device.

Having thus described my invention, and believing I have produced a novel and useful device, what I claim, and desire to secure by United States Letters Patent, is-

1. Atemperature-retainingdevice,embracing an interior storage-chamber, a second chamber surrounding the same for containing the temperature-producing means, said chambers having no communication with each other, means for insulating the second chamber from the effect of outside temperature, said device being constructed to afford access to its storage-chamber, and means for closing said second chamber to the access of air thereto or the exit of its temperatureproducing means therefrom when the device is opened for access to the storage-chamber.

2. Atemperature-retaining device,en1brac ing two relatively adjustable sections, relatively formed to provide an interior storagechamber between them,a second chamber surrounding the storage-chamber, for containing temperature producing means, a dead air chamber surrounding said second chamber and means operated to close access of air to the portions of the sections composing said second chamber when the sections are adjusted to afford access to said storage-chamher and for opening communication between the sections of said second chamber when the device is closed.

3. A temperature-retainiugdevice,embracing two relatively adjustable sections, relatively formed to provide an interior storagechamberbetween them,a second chamber surrounding the storage-chamber for containing the temperature-producing means, said storage-chamber being air-tight and completely closed to said second chamber, means for insulating the second chamber from the effect of outside temperature, openings through which the sections of the second chamber for communication with each other when the device is closed and valves operated automatically to close said openings when the device is opened and to open the same when the device is closed.

4. The combination witha base, of a temperature-retaining device rotatably mounted thereon and comprising two sections relatively formed to provide an interior storagechamber and a chamber surrounding the same for containing the temperature producing means, said sections being relatively adjustable to afford access to said storage-chamber.

5. A temperature-retainingdevice,embracing two relatively adjustable sections relatively formed to provide an interior storagechamber and a second chamber surrounding the storage-chamber for containing the temperature-producing medium, said sections being formed with openings through which the second chamber of one section has communication with the second chamber of the other section, valves operated automatically to close the respective openings when the device is opened and open the same when the device is closed, and means operated automatically to close the openings-against access of air thereto until said device is completely closed.

6. Atemperature-retaining device, embracing two relatively adjustable sections relatively formed to provide an interior storagechamber and a second chamber surrounding the storage-chamber for containing temperatureproducing medium, said sections being formed with openings through which the second chamber of one section has communication with the second chamber of the other section, valves for closing said openings when the sections are opened and for opening the same when the sections are closed together, and a means adapted to be projected from one of said openings into the other to thereby connect the same together.

7. A tem perature-retaining device, embracing two relatively adjustable sections relatively formed to provide an interior storagechamber for containing the temperature-producing medium, said sections being formed with openings through which the second chamber of one section has communication with the second chamber of the other section, spring-pressed valves for automatically closing said openings when the device is opened, said valves having means to engage each other and hold the valves from their seats when the sections are closed, and a springpressed tube within one of said openings, thrust automatically from the same into the other opening to thereby span the space between the same and prevent escape of the temperature-producing medium from said second chamber.

8. A temperature-retaining device having two sections hingedly connected together, chambers formed within said sections, means for connecting the chambers together, con- 7 formed within said sections, suitable passages secured oppositely upon the sections and connected to the chambers, valves secured within said passages, means for opening and closing the valves automatically, and means to connect the passages together while closing the sections, consisting of movable ring secured to the outer end of one of the passages, and provided with a cone-shaped outer end projecting outwardly and matching with the beveled outer end of the other passage, substantially as set forth and for the purpose specified.

10. A temperature-retaining device having two sections hingedly secured together and formed to provide an interior storage-chamher and a chamber around the same for containing the temperature-producing medium, and a locking means for the sections constructed to draw the same tightly into engagement with each other, for the purpose specified.

11. A temperature-retaining device having two substantially alike sections hingedly secured at one edge and formed to provide a storage-chamber and a chamber around the same for containing the temperature-producing medium, a locking device adapted to bring the sections in close and tight position, substantially as set forth and for the purpose specified.

12. A temperature-retaining,device provided with two sections hingedly secured at one edge and formed to provide a storagechamber and a chamber around the same for containing the temperature-producing medium, a locking device adapted to draw together the sections, consisting of a movable catch secured to one of the sections, and rotating hook-bolt secured to the other section and means to move the catch and rotate the hook-bolt, substantially as set forth and for the purpose specified.

13. A temperature retaining device provided with two substantially alike sections hingedly secured at one edge and formed to provide a storage-chamber and a chamber around the same for containing the tempera titre-producing medium, and means for locking the sections hermetically, consisting of a catch pivoted at its rear end to one of the sections, and having a hooked-forward end slightly inclined outwardly, a rotating hookbolt secured to the other section and adapted to draw closer the catch, substantially as set forth and for the purpose specified.

14. A temperature-retaining device, embracing two relatively adjustable sections, relatively formed to provide an interior storage-chamber and a surrounding chamber for containing a temperature producing medium, said storage chamber being sealed against access of temperature-producing medium from said surrounding chamber and said surrounding chamber having means for the admission thereto and egress therefrom of the temperature-producing medium, and also having its abutting Walls formed with openings through which the sections thereof have communication with each other when the device is closed, and means operated to closesaid openings when the device is opened to adord access to said storage-chamber and to open the same when the device is closed.

In testimony whereofI have affixed my signature, in presence of two witnesses, this 28th day of February, A. D. 1902.

JACOB HOMMEL.

In presence of-- F. GOUAILHARDON, J. MARTIN. 

